Question

Flooding can be beneficial because... A. it can make the ground more fertile B. it can destroy homes C. it can teach people to swim D. All of these are correct 72. 73. Which of the following is true about wildlife in a swamp? A. Fish cannot survive in the low-oxygen water Swamps are very diverse in terms of wildlife. C. Only animals can live in, around, or above the water 74. How do cnidarians eat? A. Th Nematocycts paralyze prey, which they draw into their mouths with their tentacles. C. ey cover prey with their body and absorb food through their tissues. They are plant-eating animals that scrape algae off of rocks. 75. Most bony fish tend to ha vbrains in comparison to other vertebrates. A. complesx B. small C. large Which of the following does not describe a lotic system? A. Environments include streams and rivers 76. ? B. All of these describe a lotic system C. Normally oxygen riclh 77. Which of the following describes an emergent coast? A. Decreasing sea levels form an emergent coast. B. It is caused from a rise in sea level in an area. C. It is caused when an area has lots of sand and silt deposited on it from wave deposition. D. a and c only 78. The marine ecosystem that many scientists think is the least diverse is the A. beach B. mangrove swamp C. polar 79. What do sponges have in common? Have tissues Have pores Have bones to provide support All of the above are correct A. B. C. D.

Answer 1

72. A

Flooding can deposit nutrient soil and thus make the ground more fertile.

73. B

Swamps provide habitat to fishes, amphibians and reptiles.

74. B

Nematocysts paralyze the prey. The prey is then drawn towards the mouth by means of tentacles.

75. B

Most fishes are characterized by small brain and 10 pairs of cranial nerves.

76. B

Lotic systems have moving waters like streams and river basins.

79. B

All sponges are characterized by presence of pores with a cellular grade of organization.